Identify the correct union of intervals for the inequality.
?
?
A. ?
B. 
C. 
D. 
E. ?
Answer: A
Mathematics
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Solve the problem.If u = -5i - 3j + 4j, v = 2i - 9j + 7k and w = 2i - 4j - 10k, evaluate (u × v) ? w.
A. -448 B. 98 C. -676 D. -712
Mathematics
Find the sum or difference.
+ 
A. 
B. - 
C. 
D. 
Mathematics
Identify the pair of lines as parallel, perpendicular, or intersecting.
A. Perpendicular B. Parallel C. Intersecting
Mathematics
Sketch the graph of the function. Label at least three points.f(x) = 
A. 
B. 
C. 
D. 
Mathematics